Improvement in pendulum-balls



UNITED STATES PATENT OEEIo HARRY F. HENDERSON, OF BRISTOL, CONNECTICUT,ASSIGNOR'TO HIMSELF AND GEORGE LEWIS, OF SAME PLACE.

. IMPROVEMENT IN PENDULUM-BALLS. I

Specification forming part of Letters Patent No. 173,285, dated February8, 1876; application filed January. 24, me.

To all whom it may concern:

Be it known that I, HARRY F. HENDERSON, of Bristol, in the county ofHartford and State of Connecticut, have invented certain new anduseful-Improvements in Pendulum-Balls; and I do hereby declare thefollowing to be a full, clear, and exact description of the invention,such as will enable others skilled in the art to which it pertains tomake and use it, reference being bad to the accompanying drawings whichform part of this specification.

This invention relates to certain improvements in pendulum-balls.

Figure l is a side elevation of myinvention, and Fig. 2 is a verticalsection of the same.

A A are semi-spheroidal sections, formed of sheet metal, either byupsetting or spinning, as may be found most expedient in theirmanufacture. The adjoining edges of sections AA are retained and alsoconcealed by a metallic ring, B, the same being provided with flanges bb to retain the sections in position, and said flanges also serve toconceal the meeting-edges of the said sections. 0 is atube,screw-threaded at c, and provided at its lower end with a eollet orwasher, 0. Tips D-D are placed on the tube C, one above and the otherbelow the sections A A. These tips are formed with their endscountersunk or recessed for partially receiving and concealing thewasher secure the several parts of the ball on the tube.

The pendulum-rod passes through the tube, and the speed of the clock maybe regulated by varying the adjustment of the pendulumball on its rod.

The ball may be weighted, if desired, either by pouring lead into thelower section A, and afterward polishing the outer surface of same, orthe weight may be cast in a mold, and slipped over the hollow tube.

The several parts of the ball may be made of any desired material, and,if desired, the tips D D may be dispensed with, and a conical washer andnut substituted therefor.

Having fully described my invention, what I claim as new, and desire tosecure by Letters Patent, is

1. The sections A A, in combination with the ring B, substantially asand for the purpose set forth.

2. The sections A A, ring B, and tips D D, in combination with the tubeC, washer c, and nut E, substantially as shown and described. Intestimony that I claim the foregoing I have hereunto set my hand this22d day of January, 1876.

HARRY F. HENDERSON.

Witnesses S. P. NEWELL, GEORGE LEwIs.

